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The code to sound the “bell” is CHR$(7), which is ASCII code
7 or (BEL). Any time your printer receives this code it will
sound the bell for a quarter of a second. This can be used to re-
mind the operator to change the paper or to make other ad-
justments to the printer.
You can try this by typing:
LPRINT CHR$(7)
n Resetting the printer
Up to now when we wanted to reset the printer to the power
on condition we have had to either turn the printer off and on
again, or to send the specific codes that reset the particular
features. There is an easier way. The control code (ESC) “(3”
will reset all of the printer’s features to the power on condition
(as determined by the DIP switches), with two exceptions. The
exceptions are that (ESC) “@” will not erase any characters
that you have stored in the printer’s RAM memory (Chapter 6
tells you how to create your own characters), and it won’t erase
a macro if you have one stored in the printer’s RAM (this
chapter will tell you how to create a macro).
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In addition, if you set the “Panel” mode by the control panel
settings at power on, these functions will remain with this con-
trol code.
n Taking the printer off line
You know how to put your printer,off line with the On Line
key on the control panel. The printer has another off line state
that can be controlled from the computer. When you turn the
printer off line from the computer, the printer will ignore
anything that you send it, except for the code to go on line
again. CHR$(lS) is the code to turn the printer off line;
CHR$(17) turns the printer back to on line status.
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n Printing the bottom of the sheet
Sometimes when you are using individual sheets of paper you
may want to print near the bottom of a sheet. The paper-out
detector usually stops the printer when you are about 1 inch
from the bottom of the sheet. This is notify you if you are run-
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